1226988 - Pinch to zoom breaks home screen

Status: RESOLVED WORKSFORME

(Firefox OS Graveyard :: Gaia::Homescreen, defect)

Description

[Jonathan Kingston [:jkt] he/him]

User Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.86 Safari/537.36

Steps to reproduce:

Pinched to zoom when on the home screen
Pinched to expand in the opposite direction



Actual results:

After zooming, the icons zoomed out and were not visible
After zooming back out the whole screen went black removing all icons including the home screen besides the battery indicators. Locking the phone and unlocking made the whole screen light up but remain fully black.


Expected results:

Not sure what zoom in/out should do however it certainly shouldn't leave the phone in a unusable state

Comment 1

[Jonathan Kingston [:jkt] he/him]

Device:
Sony leo

Image:
https://github.com/fxpdev/b2g-updates/releases/tag/nightly

OS version:
2.6.0.0-prerelease

Build identifier:
20151120220038

Comment 2

[Jonathan Kingston [:jkt] he/him]

Video of the issue available on request (Not sure the best place to store it as it's 17mb)

Comment 3

[Jonathan Kingston [:jkt] he/him]

When I set the `visibility: hidden` on the `<iframe` within the 'main process' app then set it `visibility: visible;` it fixes the icons.
The same isn't true for the default home screen app... even the body.


Adding this to the main process app head fixes the issue:

<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=false">

Comment 4

[[:fabrice] Fabrice Desré]

(In reply to jonathan from comment #2)
> Video of the issue available on request (Not sure the best place to store it
> as it's 17mb)

Uploading to any video service like youtube/vimeo/your_favorite_one is fine.

Comment 5

[Jonathan Kingston [:jkt] he/him]

(In reply to [:fabrice] Fabrice Desré from comment #4)
> (In reply to jonathan from comment #2)
> > Video of the issue available on request (Not sure the best place to store it
> > as it's 17mb)
> 
> Uploading to any video service like youtube/vimeo/your_favorite_one is fine.

This is currently pending processing here: https://vimeo.com/146580807
Sorry was being dumb :D

Comment 6

[Jonathan Kingston [:jkt] he/him]

I intend to work on this as my first bug, if anyone can assign it you me that would be brilliant. Thanks.

Comment 7

[Chris Lord [:cwiiis]]

I can't reproduce this and there already is a viewport on the homescreen:
https://github.com/mozilla-b2g/gaia/blob/master/apps/homescreen/index.html#L5

It's likely that this may have been a temporary platform bug, but closing as worksforme. If anyone is able to reproduce on current 2.5 or master, please reopen.

Comment 8

[Jonathan Kingston [:jkt] he/him]

(In reply to Chris Lord [:cwiiis] from comment #7)
> I can't reproduce this and there already is a viewport on the homescreen:
> https://github.com/mozilla-b2g/gaia/blob/master/apps/homescreen/index.html#L5
> 
> It's likely that this may have been a temporary platform bug, but closing as
> worksforme. If anyone is able to reproduce on current 2.5 or master, please
> reopen.

To confirm the fix in the IDE that stopped the issue was adding it to the main process not the home screen:
https://github.com/mozilla/gecko-dev/blob/master/b2g/chrome/content/shell.html

I have rebuilt several times but then have not seen anyone else with the same issue.